Photovoltaic device

Abstract

The utility model relates to a photovoltaic device. The photovoltaic device comprises at least two photovoltaic tiles and a connecting mechanism, and the connecting mechanism is used for connecting two adjacent photovoltaic tiles. The connecting mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is connected to the vertical face and / or the back face of one photovoltaic tile, the second connecting piece is connected to the vertical face and / or the back face of the other adjacent photovoltaic tile, and the first connecting piece is in lap joint with the second connecting piece so as to connect the two adjacent photovoltaic tiles. According to the photovoltaic device, the connecting mechanisms between the adjacent photovoltaic tiles do not shield the power generation areas on the front faces of the photovoltaic tiles, so that the whole front faces of the photovoltaic tiles can absorb sunlight, and the power generation efficiency of the photovoltaic tiles can be improved. In addition, the first connecting piece and the second connecting piece are connected in a lap joint mode, disassembly and assembly are fast, and the photovoltaic tile can be conveniently installed, maintained and replaced.

Description

Technical Field

[0001] The present application relates to the technical field of new energy equipment, and in particular to photovoltaic devices. Background Art

[0002] With the development of the photovoltaic industry, there are more and more large-scale ground power stations, and the land resources for the construction of photovoltaic power stations are also decreasing. In recent years, rooftop power stations have received more and more attention. Photovoltaic building integration, photovoltaic devices and buildings are designed, constructed and put into use at the same time. Rooftop power stations become part of the building, and it is not easy to damage the waterproof, thermal insulation and other structures of the roof.

[0003] In the related art, a photovoltaic device includes a plurality of photovoltaic tiles, which are generally rectangular, with aluminum alloy frames set on the long sides and fixed on the bracket. The short sides are generally also provided with aluminum alloy frames, and the aluminum alloy frames of adjacent photovoltaic tiles are interlocked and connected.

[0004] However, the aluminum alloy frame is usually U-shaped and wraps around the front, facade and back of the photovoltaic tile, blocking the power generation area of ​​the photovoltaic tile, especially the upper side power generation area, affecting the power generation efficiency of the photovoltaic tile. Utility Model Content

[0005] Based on this, it is necessary to provide a photovoltaic device in which the connection mechanism between adjacent photovoltaic tiles does not block the power generation area on the front of the photovoltaic tiles, so that the entire front of the photovoltaic tiles can absorb sunlight, which is beneficial to improving the power generation efficiency of the photovoltaic tiles.

[0006] A photovoltaic device, comprising:

[0007] at least two photovoltaic tiles;

[0008] A connecting mechanism is used to connect two adjacent photovoltaic tiles, and the connecting mechanism includes a first connecting member and a second connecting member, the first connecting member is connected to the facade and / or back of one photovoltaic tile, the second connecting member is connected to the facade and / or back of another adjacent photovoltaic tile, and the first connecting member is overlapped on the second connecting member to connect the two adjacent photovoltaic tiles.

[0009] In one embodiment, the first connecting member includes a first fixing portion and a protruding portion, the second connecting member includes a second fixing portion and a groove portion, the first fixing portion and the second fixing portion are respectively connected to the corresponding photovoltaic tile, the protruding portion is snapped into the groove portion, and the protruding portion can rotate relative to the groove portion.

[0010] In one of the embodiments, a side of the protruding portion facing the recessed portion is configured as an arc surface, and a circular arc groove is correspondingly configured on the recessed portion.

[0011] In one embodiment, the protrusion is configured to be hemispherical, and the groove portion is correspondingly configured with a hemispherical groove.

[0012] In one embodiment, the protrusion is configured to be square, and the groove portion is correspondingly configured to be a square groove, and the size of the square groove is larger than the size of the protrusion, so that the protrusion can rotate in the square groove.

[0013] In one of the embodiments, a sealing member is sandwiched between the protruding portion and the groove portion.

[0014] In one embodiment, the sealing member is made of waterproof glue or a sealing gasket.

[0015] In one embodiment, the first fixing portion and / or the second fixing portion respectively include a supporting plate and a connecting plate connected to each other, the supporting plate is connected to the back surface, the connecting plate is connected to the facade, and the end of the connecting plate away from the supporting plate is connected to the protruding portion or the groove portion.

[0016] In one of the embodiments, on the front side of the photovoltaic tile, a glue-filled gap is provided between the first connector and / or the second connector and the photovoltaic tile respectively, and a waterproof sealant is provided in the glue-filled gap.

[0017] In one embodiment, the connecting mechanisms are respectively provided on two opposite sides of the photovoltaic tile, and the first connecting member is provided on one side of the photovoltaic tile, and the second connecting member is provided on the other side.

[0018] The above-mentioned photovoltaic device can connect the first connector and the second connector to the facade or back of the photovoltaic tile, or to the facade and back of the photovoltaic tile at the same time, depending on the actual working conditions. It is necessary to ensure that the first connector and the second connector are firmly connected to the corresponding photovoltaic tile. Regardless of the above connection method, the first connector and the second connector can avoid the front of the photovoltaic tile to avoid blocking the front of the photovoltaic tile, thereby ensuring that the entire front of the photovoltaic tile can be illuminated, and then ensuring that the photovoltaic tile has a high power generation efficiency, so that the photovoltaic device including multiple photovoltaic tiles maintains the maximum power generation efficiency and achieves better economic benefits. In addition, the first connector and the second connector are connected by a spherical structure, which is quick to disassemble and assemble, and convenient for installing, repairing and replacing the photovoltaic tiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a photovoltaic device provided in one embodiment of the present application.

[0020] Figure 2A schematic diagram of the structure of a photovoltaic device during disassembly provided in one embodiment of the present application.

[0021] Description of reference numerals:

[0022] 100, photovoltaic tile; 110, front; 120, back; 130, facade; 200, connecting mechanism;

[0023] 210, first connecting member; 211, first fixing portion; 2110, glue filling gap; 2111, supporting plate; 2112, connecting plate; 212, protruding portion;

[0024] 220, second connecting member; 221, second fixing portion; 222, groove portion;

[0025] 230, seals;

[0026] 240, waterproof sealant;

[0027] 250. Structural adhesive. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] like Figure 1 As shown, this embodiment provides a photovoltaic device suitable for areas with sufficient sunlight, and is particularly suitable for installation on the roof of a building. Specifically, the photovoltaic device includes at least two photovoltaic tiles 100, and at least two photovoltaic tiles 100 are spliced ​​together to form a photovoltaic matrix. The number of photovoltaic tiles 100 included in a set of photovoltaic devices, the length and width of the photovoltaic matrix are determined according to the size of the installation space, and the application is more flexible.

[0035] The photovoltaic tile 100 includes a front face 110, a back face 120 and a facade 130, wherein the facade 130 is a plane connecting the front face 110 and the back face 120. During installation, the front face 110 and the back face 120 are two opposite faces of the photovoltaic tile 100, and the front face 110 faces the direction of light, and is the main surface for lighting and power generation. The lighting area of ​​the front face 110 of the photovoltaic tile 100 directly affects the power generation efficiency of the photovoltaic tile 100. In order to connect a plurality of photovoltaic tiles 100 as one, a connecting mechanism 200 is provided between adjacent photovoltaic tiles 100 for connection. When the existing connecting mechanism 200 is connected to the photovoltaic tile 100, it is generally to clamp the edge of the photovoltaic tile 100 through an aluminum alloy frame. In order to clamp firmly, it is necessary to wrap the front face 110, the facade 130 and the back face 120 of the photovoltaic tile 100, which results in the shielding of the power generation area of ​​the front face 110.

[0036] In order to solve the above problems, the connection mechanism 200 is improved in this embodiment. Figure 1 As shown, the connecting mechanism 200 includes a first connecting member 210 and a second connecting member 220. The first connecting member 210 is connected to the facade 130 and / or the back side 120 of a photovoltaic tile 100, and the second connecting member 220 is connected to the facade 130 and / or the back side 120 of another adjacent photovoltaic tile 100. The first connecting member 210 is overlapped on the second connecting member 220 to connect two adjacent photovoltaic tiles 100.

[0037] According to actual working conditions, the first connector 210 and the second connector 220 can be connected to the facade 130 or the back 120 of the photovoltaic tile 100, or connected to the facade 130 and the back 120 of the photovoltaic tile 100 at the same time. It is necessary to ensure that the first connector 210 and the second connector 220 are firmly connected to the corresponding photovoltaic tile 100. Regardless of the above connection method, the first connector 210 and the second connector 220 can avoid the front 110 of the photovoltaic tile 100 to avoid blocking the front 110 of the photovoltaic tile 100, thereby ensuring that the entire front 110 of the photovoltaic tile 100 can be illuminated, and then ensuring that the photovoltaic tile 100 has a high power generation efficiency, so that the photovoltaic device including multiple photovoltaic tiles 100 maintains the maximum power generation efficiency and achieves better economic benefits. In addition, the first connector 210 and the second connector 220 are overlapped and connected, and the disassembly and assembly are relatively quick, which is convenient for the installation, maintenance and replacement of the photovoltaic tile 100.

[0038] Optionally, the first connecting member 210 and the second connecting member 220 are connected to the corresponding photovoltaic tile 100 by bonding, which is convenient for connection.

[0039] When bonding the first connector 210 and the second connector 220 to the photovoltaic tile 100, a structural adhesive 250 or a double-sided tape may be used, the structural adhesive 250 may be applied to the first connector 210 and the second connector 220, or the double-sided tape may be bonded to the first connector 210 and the second connector 220, and then the photovoltaic tile 100 may be placed on the corresponding first connector 210 or the second connector 220 to complete the bonding connection. Of course, the structural adhesive 250 or the double-sided tape may also be placed on the photovoltaic tile 100 first, and bonding can also be achieved.

[0040] Alternatively, if Figure 1 As shown, on the front side 110 of the photovoltaic tile 100, a glue gap 2110 is provided between the first connector 210 and / or the second connector 220 and the photovoltaic tile 100, and a waterproof sealant 240 is provided in the glue gap 2110. By providing the waterproof sealant 240, the sealing between the first connector 210 and / or the second connector 220 and the photovoltaic tile 100 is improved.

[0041] It should be noted that the photovoltaic tile 100 is usually arranged in a rectangular shape with a long side and a short side. When a plurality of photovoltaic tiles 100 are arranged, they are usually connected in a row with the short sides connected in sequence. The connection mechanism 200 proposed in this embodiment is particularly suitable for connecting the short sides of the photovoltaic tiles 100. The long sides of adjacent rows are not connected to each other. The long sides of the photovoltaic tiles 100 are usually clamped by an aluminum alloy frame. A bracket is provided on the bottom side of the photovoltaic tile 100, and the aluminum alloy frame is supported and fixed by the bracket, thereby fixing the photovoltaic tile 100.

[0042] Alternatively, if Figure 1 As shown, the first connector 210 includes a first fixing portion 211 and a protruding portion 212, and the second connector 220 includes a second fixing portion 221 and a groove portion 222. The first fixing portion 211 and the second fixing portion 221 are respectively connected to the corresponding photovoltaic tile 100, and the protruding portion 212 is snapped into the groove portion 222, and the protruding portion 212 can rotate relative to the groove portion 222. By respectively arranging the protruding portion 212 and the groove portion 222 on the first connector 210 and the second connector 220, the snap-fitting of the first connector 210 and the second connector 220 is achieved, so that the overlap between the two is more secure. Moreover, the protruding portion 212 can rotate relative to the groove portion 222, which is more convenient for assembling and disassembling the first connector 210 and the second connector 220.

[0043] In order to make the protrusion 212 and the groove 222 rotate flexibly, in one embodiment, the protrusion 212 is provided with a circular arc surface on the side facing the groove 222, and the groove 222 is provided with a circular arc groove. The cooperation between the circular arc groove and the circular arc surface makes the rotation more flexible. In this embodiment, the protrusion 212 is provided with a hemispherical shape, and the groove 222 is provided with a hemispherical groove, which is conducive to making the protrusion 212 rotate more flexibly in the groove 222.

[0044] In other embodiments, the protrusion 212 may be arranged in a square shape, and the recessed portion 222 may be provided with a square groove correspondingly, and the size of the square groove is larger than the size of the protrusion 212, so that the protrusion 212 can rotate in the square groove. By making the size of the square groove larger than the size of the protrusion 212, a larger gap is provided between the inner wall of the square groove and the protrusion 212, thereby providing sufficient space for the protrusion 212 to move in the square groove, and also enabling the protrusion 212 to rotate relative to the recessed portion 222.

[0045] In order to ensure the sealing between the first connecting member 210 and the second connecting member 220, as shown in FIG. Figure 1 As shown, a sealing member 230 is sandwiched between the raised portion 212 and the groove portion 222. Optionally, the sealing member 230 uses waterproof glue or a sealing gasket to form a seal between the first connector 210 and the second connector 220, which is beneficial to prevent rainwater on the photovoltaic tile 100 from flowing from the connection between the first connector 210 and the second connector 220 to the roof, thereby helping to reduce roof leakage.

[0046] In this embodiment, the first fixing portion 211 and the second fixing portion 221 have the same structure and are respectively connected to two photovoltaic tiles 100 in a mirror image. Only the first fixing portion 211 is used as an example for structural description. Specifically, the first fixing portion 211 includes a supporting plate 2111 and a connecting plate 2112 connected to each other. The supporting plate 2111 is connected to the back side 120 of the photovoltaic tile 100, and the connecting plate 2112 is connected to the facade 130 of the photovoltaic tile 100. The end of the connecting plate 2112 away from the supporting plate 2111 is connected with a protrusion 212 or a groove 222. By providing the supporting plate 2111 and the connecting plate 2112, the first fixing portion 211 is connected to the back side 120 and the facade 130 of the photovoltaic tile 100 at the same time, and the force-bearing area is relatively large, which is conducive to the first connecting member 210 being firmly connected to the photovoltaic tile 100.

[0047] It is understandable that the protrusion 212 of the first connector 210 is supported on the upper side of the groove 222 of the second connector 220, and the force is smaller than that of the second connector 220. Therefore, in other embodiments, the support plate 2111 or the connection plate 2112 can be omitted in the first connector 210. Of course, the support plate 2111 or the connection plate 2112 can also be omitted in the second connector 220 according to the weight of the photovoltaic tile 100 and the bonding strength of the adhesive, so that the first fixing portion 211 has sufficient supporting strength, and the specific structure of the first fixing portion 211 is not limited here.

[0048] like Figure 2 As shown, when more than two photovoltaic tiles 100 are connected in sequence, connecting mechanisms 200 are respectively provided on opposite sides of the photovoltaic tiles 100, and a first connecting member 210 is provided on one side of the same photovoltaic tile 100, and a second connecting member 220 is provided on the other side. Multiple photovoltaic tiles 100 are overlapped in sequence, which makes it convenient to disassemble and replace one of the photovoltaic tiles 100.

[0049] like Figure 2 As shown, a second connection member 220 is provided on the left side of the photovoltaic tile 100, and a first connection member 210 is provided on the right side of the photovoltaic tile 100. When one of the photovoltaic tiles 100 needs to be replaced, the right side of the photovoltaic tile 100 is lifted to separate the first connection member 210 from the second connection member 220. During this process, the groove portion 222 on the left side of the photovoltaic tile 100 rotates around the protrusion 212, and the photovoltaic tile 100 to be replaced can be removed without affecting the photovoltaic tiles 100 on the left and right sides. When replacing a new photovoltaic tile 100, the reverse order can be followed.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A photovoltaic device, characterized in that: include: at least two photovoltaic watts (100); A connecting mechanism (200) is used to connect two adjacent photovoltaic tiles (100), the connecting mechanism (200) comprising a first connecting member (210) and a second connecting member (220), the first connecting member (210) being connected to the facade (130) and / or the back surface (120) of one photovoltaic tile (100), the second connecting member (220) being connected to the facade (130) and / or the back surface (120) of another adjacent photovoltaic tile (100), the first connecting member (210) being overlapped on the second connecting member (220) to connect the two adjacent photovoltaic tiles (100).

2. The photovoltaic device according to claim 1, characterized in that: The first connecting member (210) includes a first fixing portion (211) and a protruding portion (212), and the second connecting member (220) includes a second fixing portion (221) and a groove portion (222), the first fixing portion (211) and the second fixing portion (221) are respectively connected to the corresponding photovoltaic tile (100), the protruding portion (212) is snap-fitted into the groove portion (222), and the protruding portion (212) can rotate relative to the groove portion (222).

3. The photovoltaic device according to claim 2, characterized in that: The side of the protruding portion (212) facing the recessed portion (222) is arranged as an arc surface, and the recessed portion (222) is correspondingly provided with an arc groove.

4. The photovoltaic device according to claim 3, characterized in that: The convex portion (212) is arranged in a hemispherical shape, and the groove portion (222) is correspondingly provided with a hemispherical groove.

5. The photovoltaic device according to claim 2, characterized in that: The raised portion (212) is arranged in a square shape, and the recessed portion (222) is correspondingly provided with a square groove, the size of the square groove being larger than the size of the raised portion (212), so that the raised portion (212) can rotate in the square groove.

6. The photovoltaic device according to claim 2, characterized in that: A sealing member (230) is sandwiched between the raised portion (212) and the groove portion (222).

7. The photovoltaic device according to claim 6, characterized in that: The sealing member (230) is made of waterproof glue or a sealing gasket.

8. The photovoltaic device according to claim 2, characterized in that: The first fixing portion (211) and / or the second fixing portion (221) respectively comprise a supporting plate (2111) and a connecting plate (2112) connected to each other, the supporting plate (2111) being connected to the back surface (120), the connecting plate (2112) being connected to the facade (130), and the end of the connecting plate (2112) away from the supporting plate (2111) being connected to the protruding portion (212) or the recessed portion (222).

9. The photovoltaic device according to claim 1, characterized in that: On the front side (110) of the photovoltaic tile (100), a glue filling gap (2110) is provided between the first connecting member (210) and / or the second connecting member (220) and the photovoltaic tile (100), respectively, and a waterproof sealant (240) is provided in the glue filling gap (2110).

10. The photovoltaic device according to any one of claims 1 to 9, characterized in that: The connecting mechanisms (200) are respectively arranged on two opposite sides of the photovoltaic tile (100); the first connecting member (210) is arranged on one side of the photovoltaic tile (100), and the second connecting member (220) is arranged on the other side.

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